826d7adde7
The issue was introduced by a Threadripper2 commit back in ce927e15e0e3. This boils down to threads inheriting affinity from the parent thread. It is a question how this slipped through the review (we definitely run benchmark round). Quick fix could have been to always set CPU group affinity in Cycles, and it would work for Windows. On other platforms we did not have CPU groups API finished. Ended up making Cycles aware of NUMA topology, so now we bound threads to a specific NUMA node. This required adding an external dependency to Cycles, but made some code there shorter.
37 lines
897 B
C
37 lines
897 B
C
/*
|
|
* Copyright 2011-2016 Blender Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef __UTIL_WINDOWS_H__
|
|
#define __UTIL_WINDOWS_H__
|
|
|
|
#ifdef _WIN32
|
|
|
|
#ifndef NOGDI
|
|
# define NOGDI
|
|
#endif
|
|
#ifndef NOMINMAX
|
|
# define NOMINMAX
|
|
#endif
|
|
#ifndef WIN32_LEAN_AND_MEAN
|
|
# define WIN32_LEAN_AND_MEAN
|
|
#endif
|
|
|
|
#include <windows.h>
|
|
|
|
#endif /* _WIN32 */
|
|
|
|
#endif /* __UTIL_WINDOWS_H__ */
|